<?php
/**
 * 
 * memcache缓存类
 * @author kaihui_wang
 *
 */
class My_Cache_Memcache{
	private static $_instance = null;
	private $memcacheObj = null;
	public static function getInstance(){
		if(!self::$_instance){
			$obj=new self();
			self::$_instance = $obj->memcacheObj;
		}
		return self::$_instance;
	}
	
	/**
	 * 
	 * 获取配置
	 */
	public function getConfig(){
		return My_Config::getInstance()->getInit();
	}
	
	/**
	 * 
	 * 获取服务器
	 */
	public function getServers(){
		return isset(getSysData('cache.memcache.server')) ? getSysData('cache.memcache.server') : "";
	}
	

	/**
	 * 
	 * 获取基本适配器
	 */
	public function __construct(){
		try{
	//		$servers = $this->getServers();
	//		print_r($servers);
			$memcacheObj = new Memcache();
	//		$memcacheObj->setOption(Memcached::OPT_DISTRIBUTION, Memcached::DISTRIBUTION_CONSISTENT);
	//		$memcacheObj->setOption(Memcached::OPT_HASH, Memcached::HASH_CRC);
	//		foreach($servers as $k=>$v){
	//			$memcacheObj->addServer($v['ip'], $v['port'], true, $v['weight']);
	//		}
$memcacheObj->addServer(getSysData('cache.memcache.server.ip'), getSysData('cache.memcache.server.port'), true, 10);
			$this->memcacheObj = $memcacheObj;
		}catch(Exception $e){
			throw new My_Exception($e->getMessage());
		}
	}
}